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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4996960
Kind Code:
U
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Application Number:
JP14255272U
Publication Date:
August 21, 1974
Filing Date:
December 11, 1972
Export Citation:
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International Classes:
G02C5/14; A63B33/00; (IPC1-7): G02C5/14; A63B33/00